code: def clean(cls, data):
      raise NotImplementedError
  
imports: import math
  import random
  import numpy
  import pandas
  from multiprocessing.dummy import Pool
  from nlpaug.util import Action, Method, WarningException, WarningName, WarningCode, WarningMessage
label_desc: Use image node_id 18 for calling the Augmenter obj's underlying member method code with example usage: obj.clean(cls, data) without return types